I did a lot of other stuff too. I used an animated avatar site to make other briefings. They weren't in the actual game but posted on the forum for players to "attend".
This was all part of the "Mission Theater" deal I was running in AvA for a short period.
I was trying to create a "Combat Tour lite" if you will with an RPG career aspect. We didn't have a scoring system in AvA but I had spreadsheets for players to submit their after action claims.
My intent was to follow an American Eagle squadron from creation to being absorbed by the 8th air force.
Alas, you can't please everyone and a lot of folks complained that the AI were too unrealistic. Also, though the mission system had come a long way, it still hung up occasionally ruining a planned night. I don't know how much of that might have been my fault. Once you start modifying things as much as I did, you can't count on stability.
The biggest issue was that I couldn't get enough help doing it and it was just too much work for one person. It really was a "labor of love"
This video shows a lot of what there was. Forgive the computer generated voices, I had no budget for actors LOL
https://www.youtube.com/watch?time_continue=5&v=64a7tXDANN4